Qiong LI, Shuai-shuai MA, Shu-feng PANG, Yun-hong ZHANG. Measurement on Mass Growth Factors of (NH4)2SO4, NH4NO3, and Mixed (NH4)2SO4/NH4NO3 Aerosols Under Linear RH Changing Mode[J]. Spectroscopy and Spectral Analysis, 2021, 41(11): 3444
- Spectroscopy and Spectral Analysis
- Vol. 41, Issue 11, 3444 (2021)
Fig. 1. Schematic diagram of an ATR-FTIR coupled with linear RH controlling system
Fig. 2. IR spectra of (NH4)2SO4 aerosols during dehumidification
Fig. 3. (a) Ambient RH and MGFs of (NH4)2SO4 as a function of time; (b) hygroscopic cycles of (NH4)2SO4 measured by this study and from literature and E-AIM predictions
Fig. 4. (a) Ambient RH and MGFs of NH4NO3particles as a function of time, (b) hygroscopic cycles of NH4NO3particles measured by this study and from E-AIM predictions, (c) IR spectra of NH4NO3particles during dehumidification
Fig. 5. (a) Ambient RH and MGFs of (NH4)2SO4/NH4NO3 (1∶2 mole ratio)mixed particles as a function of time, (b) hygroscopic cycles of (NH4)2SO4/NH4NO3 (1∶2 mole ratio) mixed particles measured by this study and from E-AIM predictions, (c) IR spectra of (NH4)2SO4/NH4NO3 (1∶2 mole ratio) mixed particles during dehumidification, (d) IR spectra of (NH4)2SO4/NH4NO3 (1∶2 mole ratio) mixed particles during humidification
Fig. 6. (a) Ambient RH and MGFs of (NH4)2SO4/NH4NO3 (1∶1 mole ratio) mixed particles as a function of time, (b) hygroscopic cycles of (NH4)2SO4/NH4NO3 (1∶1 mole ratio) mixed particles measured by this study and from E-AIM predictions
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